diff --git a/sys/contrib/edk2/Include/Base.h b/sys/contrib/edk2/Include/Base.h
--- a/sys/contrib/edk2/Include/Base.h
+++ b/sys/contrib/edk2/Include/Base.h
@@ -841,8 +841,10 @@
 STATIC_ASSERT (ALIGNOF (UINT16)  == sizeof (UINT16), "Alignment of UINT16 does not meet UEFI Specification Data Type requirements");
 STATIC_ASSERT (ALIGNOF (INT32)   == sizeof (INT32), "Alignment of INT32 does not meet UEFI Specification Data Type requirements");
 STATIC_ASSERT (ALIGNOF (UINT32)  == sizeof (UINT32), "Alignment of UINT32 does not meet UEFI Specification Data Type requirements");
+#ifndef _STANDALONE
 STATIC_ASSERT (ALIGNOF (INT64)   == sizeof (INT64), "Alignment of INT64 does not meet UEFI Specification Data Type requirements");
 STATIC_ASSERT (ALIGNOF (UINT64)  == sizeof (UINT64), "Alignment of UINT64 does not meet UEFI Specification Data Type requirements");
+#endif
 STATIC_ASSERT (ALIGNOF (CHAR8)   == sizeof (CHAR8), "Alignment of CHAR8 does not meet UEFI Specification Data Type requirements");
 STATIC_ASSERT (ALIGNOF (CHAR16)  == sizeof (CHAR16), "Alignment of CHAR16 does not meet UEFI Specification Data Type requirements");
 STATIC_ASSERT (ALIGNOF (INTN)    == sizeof (INTN), "Alignment of INTN does not meet UEFI Specification Data Type requirements");